DE69630285T2 - ULTRASOUND THERAPY DEVICE - Google Patents
ULTRASOUND THERAPY DEVICE Download PDFInfo
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- DE69630285T2 DE69630285T2 DE69630285T DE69630285T DE69630285T2 DE 69630285 T2 DE69630285 T2 DE 69630285T2 DE 69630285 T DE69630285 T DE 69630285T DE 69630285 T DE69630285 T DE 69630285T DE 69630285 T2 DE69630285 T2 DE 69630285T2
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- ultrasound
- transmitter
- catheter
- ultrasonic transmitter
- ultrasonic
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K41/00—Medicinal preparations obtained by treating materials with wave energy or particle radiation ; Therapies using these preparations
- A61K41/0047—Sonopheresis, i.e. ultrasonically-enhanced transdermal delivery, electroporation of a pharmacologically active agent
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
- A61M37/0092—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin using ultrasonic, sonic or infrasonic vibrations, e.g. phonophoresis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
- A61B17/2202—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being inside patient's body at the distal end of the catheter
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00853—Material properties low friction, hydrophobic and corrosion-resistant fluorocarbon resin coating (ptf, ptfe, polytetrafluoroethylene)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22001—Angioplasty, e.g. PCTA
- A61B2017/22002—Angioplasty, e.g. PCTA preventing restenosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
- A61B17/2202—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being inside patient's body at the distal end of the catheter
- A61B2017/22021—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being inside patient's body at the distal end of the catheter electric leads passing through the catheter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22051—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
- A61B2017/22062—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation to be filled with liquid
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22082—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance
- A61B2017/22088—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance ultrasound absorbing, drug activated by ultrasound
Description
TECHNISCHER HINTERGRUND DER ERFINDUNGTECHNICAL BACKGROUND OF THE INVENTION
Diese Ultraschall-Therapievorrichtung kann für die Thrombose, die Arteriosklerose und andere Krankheiten und für die Zwecke der Therapie des Wiederverschlusses nach der Angioplastiebehandlung mit den PTCA, DCA, dem Stent, dem Laser, den Rotoren usw. verwendet werden. Die Erfindung kann insbesondere verwendet werden von einem Katheter mit einem Ultraschall emittierenden Element, das an der Spitze montiert ist, das die lichtempfindlichen Arzneimittel dem Ultraschall aussetzen kann.This ultrasound therapy device can for thrombosis, arteriosclerosis and other diseases and for the purposes therapy of reclosure after angioplasty treatment used with the PTCA, DCA, the stent, the laser, the rotors, etc. become. The invention can be used in particular by a Catheter with an ultrasound emitting element attached to the Tip is mounted that the photosensitive drug Can expose to ultrasound.
Bisherige Technologie: Beispielsweise kann im Falle eines akuten Herzinfarkts die Herzkranzarterie durch ein Blutgerinnsel oder Arteriosklerosenveränderungen verstopft werden, was somit die Sauerstoffzufuhr zu dem Herzmuskel verhindert, was zum Gewebstod führt.Previous technology: for example in the event of an acute heart attack, the coronary artery a blood clot or atherosclerotic changes are blocked, thus preventing the oxygen supply to the heart muscle, what leads to tissue death.
Ein Verfahren der Behandlung eines Herzinfarkts in der inneren Medizin ist die Versbreichung von thrombolytischen Medikamenten. Dieses Mittel der Therapie ist es, Arzneimittel oral oder durch eine Injektion zu verabreichen, um die Blutgerinnsel aufzulösen. Dieses nicht-chirurgische Thrombus bzw. Blutgerinnsel auflösende Behandlungsmedikament zirkuliert jedoch innerhalb des gesamten Körpers und verhindert die ausreichende Arzneimittelabsorption am Ziel. Somit ist die Menge der Arzneimitteldosierung an der Verletzung sehr klein verglichen mit dem gesamten Verabreichungsvolumen und wird als Problem eines effizienten Arzneimittelverabreichungsverfahrens erachtet. Ebenso kann das Erhöhen der Arzneimittelkonzentration, um Effekte zu erzielen, zu schweren Nebenwirkungen in anderen Organen führen.A procedure of treating one Heart attack in internal medicine is the administration of thrombolytic Medications. This means of therapy is oral medication or administered by injection to the blood clot dissolve. This non-surgical thrombus or blood clot treatment medication however, circulates throughout the body and prevents the sufficient Drug absorption at the target. Hence the amount of drug dosage very small compared to the total administration volume and is considered a problem with an efficient drug delivery process considered. The raising can also be done drug concentration too severe to produce effects Cause side effects in other organs.
Auf der anderen Seite sind solche anderen Verfahren, wie das mechanische Blutdilatationsverfahren bekannt, um lokal thrombo-arteriosklerotische Läsionen zu behandeln. Die Blutgefäßdilatationsbehandlung, PTCA (perkutane transluminale coronare Angioplastie) genannt, wird unter Röntgenstrahlen durchgeführt durch Einfügen eines Führungsdrahtes perkutan von der Oberschenkelarterie zu der Herzkranzarterie, um einen Katheter mit einem Ballon an der Spitze, der aufgepumpt werden kann, zuzuführen. Dieser Ballon kann die Stenoseläsion verdünnen, was zu einer Erhöhung des Blutflusses führt. Es gibt andere Verfahren, wie z. B. Laser und Bohrer, um die Läsion zu ablatieren.On the other hand, there are other procedures known as the mechanical blood dilation procedure to treat local thrombo-arteriosclerotic lesions. Blood vessel dilation treatment, PTCA (percutaneous transluminal coronary angioplasty) is called X-rays carried out by Insert of a guidewire percutaneously from the femoral artery to the coronary artery to a catheter with a balloon on top that will be inflated can feed. This balloon can stenosis dilute, resulting in an increase of blood flow. There are other methods, e.g. B. Lasers and drills to close the lesion ablate.
Nach diesen Verfahren tritt jedoch nach einigen Monaten nach der Behandlung Restenose mit einer Häufigkeit von 30–50% bei den Patienten auf. Ein Routine-Checkup nach der Behandlung durch die Herzkranzangiographie wird wiederholt, wenn es eine Restenose gibt, wird die Angioplastie wiederholt. Einige Fälle benötigen eine andere Dilatationsbehandlung und in Fällen, wo dies unmöglich ist, wird die Herzkranzbypassoperation durchgeführt.However, following these procedures occurs after a few months after treatment restenosis with a frequency from 30–50% on patients. A routine checkup after treatment The coronary angiography is repeated if there is a restenosis the angioplasty is repeated. Some cases require different dilation treatment and in cases where this is impossible the coronary artery bypass surgery is performed.
Um die Restenose zu verhindern, gibt es ein Verfahren des Plazierens einer metallnetzartigen Zylindereinrichtung, genannt Stent, an dem Ort der Stenose, die die Gefäßwand nach der Dilatation durch einen Ballonkatheter stützt. Die Rate des Auftretens der Restenose ist immer noch hoch.To prevent restenosis, there there is a method of placing a metal net-like cylinder device, called a stent, at the site of the stenosis that follows the vascular wall supports dilation through a balloon catheter. The rate of occurrence the restenosis is still high.
Die Restenose wird induziert durch Verletzung der inneren Wand des Blutgefäßes, die erfolgt, während der Ballon oder die Stents eingefügt werden. Es wird angenommen, daß neointimale Hyperplasie die Ursache der Restenose ist.Restenosis is induced by Injury to the inner wall of the blood vessel that occurs during the Balloon or the stents inserted become. It is believed that neointimal Hyperplasia is the cause of restenosis.
In letzter Zeit wird, um die Restenose zu verhindern, die photodynamische Therapie unter Verwendung von lichtempfindlichen Medikamenten untersucht mit solchen Medikamenten, wie z. B. Photofrin, UpD, DHE/E (Dihämatoporphrin und Ether), chloroalunum-sulfoniertes Phthalocyanin, 8-Methoxypsoralen, 5-amino-Levulinsäure usw. Siehe Paolo Ortu et al., Photodynamic Therapy of Arteries. Circulation, American Heart Association Journal (1992, Band 85, S. 1189–1196).Lately is going to restenosis to prevent using photodynamic therapy photosensitive drugs examined with such drugs, such as B. Photofrin, UpD, DHE / E (dihematoporphrin and ether), chloroalunum sulfonated Phthalocyanine, 8-methoxypsoralen, 5-amino-levulinic etc. See Paolo Ortu et al., Photodynamic Therapy of Arteries. Circulation, American Heart Association Journal (1992, Vol. 85, Pp. 1189-1196).
Lichtempfindliche Arzneimittel werden aktiviert, wenn sie Licht ausgesetzt werden und werden medikamenteneffektiv. Somit wird nach der Verabreichung des Medikaments in den Körper die Belichtung der Zielläsion mit Licht die Effektivität des Medikaments nur an diesem Ort induzieren. Somit besteht der Vorteil, daß die photodynamische Therapie unter Verwendung von lichtempfindlichen Medikamenten weniger geneigt ist, Nebenwirkungen auf nicht kranken Abschnitten zu zeigen.Photosensitive drugs activated when exposed to light and become drug effective. Thus, after the drug is administered into the body Exposure of the target lesion effectiveness with light of the drug induce only in this place. Thus there is Advantage that the photodynamic therapy using photosensitive Medicines are less inclined to have side effects on not sick people To show sections.
Es besteht jedoch ein Problem, daß es notwendig ist, Licht von außerhalb des Körpers im Falle der photodynamischen Therapie bereitzustellen. Da Licht nur in den äußersten 1 cm in menschliches Gewebe eindringt, können therapeutische Effekte nur an Orten der Oberfläche des Körpers erzielt werden. Zusätzlich, wenn wir versuchen, Licht in einem größeren Ausmaß von der Oberfläche des Körpers zu durchdringen, besteht die Notwendigkeit, die Belichtungsenergie zu erhöhen. In diesem Fall besteht die Möglichkeit, daß der Patient Hitze bzw. Aufwärmung erfährt und die Degeneration der Gewebe. Es besteht das Problem der höheren Kosten aufgrund der Vergrößerung der Vorrichtung. Zusätzlich besteht das Problem der Lichtabsorption durch die roten Blutzellen, wenn photodynamische Therapie als eine Blutgefäßbehandlung verwendet wird. In gegenwärtiger photodynamischer Therapie der Blutgefäße wird der Blutstrom an der Läsion gestoppt und eine transparente Flüssigkeit wird ersetzt, was ein kompliziertes Verfahren ist.However, there is a problem that it is necessary is, light from outside of the body to provide in the case of photodynamic therapy. Because light only in the extreme Penetrating 1 cm into human tissue can have therapeutic effects only in places of the surface of the body be achieved. In addition, if we're trying to light to a greater extent from that surface of the body to penetrate there is a need to expose the exposure energy to increase. In this case it is possible that the patient Heat or warming up learns and tissue degeneration. There is a problem of higher costs due to the enlargement of the Contraption. additionally there is the problem of light absorption by the red blood cells, when photodynamic therapy is used as a blood vessel treatment. In the present Photodynamic therapy of the blood vessels, the blood flow to the lesion stopped and a transparent liquid is replaced what is a complicated process.
Das Dokument WO-A-93/08738 beschreibt einen Katheter mit einem Ultraschallemitter an der Spitze des Katheters und einem sich in Längsrichtung erstreckenden Lumen.Document WO-A-93/08738 describes a catheter with an ultrasound emitter at the tip of the catheter and one in the longitudinal direction extending lumens.
ZUSAMMENFASSUNG DER ERFINDUNGSUMMARY OF THE INVENTION
Das Ziel des Werkzeugs der Erfindung, wie sie in Anspruch 1 definiert ist, ist es, ein Medikamentenzuführungswerkzeug bereitzustellen, um Krankheiten ohne die Verwendung von Lichtenergie lokal zu behandeln. Bevorzugte Ausführungsformen dieses Werkzeugs sind in den abhängigen Ansprüchen definiert.The aim of the tool of the invention as defined in claim 1 is a medication delivery tool to provide disease without the use of light energy treat locally. Preferred embodiments of this tool are in the dependent claims Are defined.
Der Ultraschallkatheter kann in das Blutgefäß eingesetzt werden, um lichtempfindliche Arzneimittel mit Ultraschall zu belichten und die lichtempfindlichen Arzneimittel zu aktivieren.The ultrasound catheter can be inserted into the Blood vessel inserted to expose photosensitive drugs with ultrasound and activate the photosensitive drugs.
Das lichtempfindliche Arzneimittel kann über den Katheter oder durch eine konventionelle Injizierung in den Blutstrom zugeführt werden. Der Ultraschallemitter an der Spitze des Katheters kann das lichtempfindliche Element innerhalb des Blutgefäßes aktivieren. Das Arzneimittel kann aktiviert werden durch Ultraschallenergie sowie auch durch Lichtenergie, so daß die lichtempfindli chen Medikamente durch Ultraschall aktiviert werden. Somit werden lichtempfindliche Arzneimittel nur nahe des kranken Ortes effektiv und machen es möglich, den Ort besonders zu behandeln.The photosensitive drug can about the catheter or by conventional injection into the bloodstream supplied become. The ultrasound emitter at the tip of the catheter can activate the photosensitive element inside the blood vessel. The drug can be activated by ultrasound energy and also by light energy, so that the photosensitive drugs be activated by ultrasound. This makes photosensitive Medicines only effectively close to the sick place and make it possible for the Treat place specifically.
Zusätzlich ist es möglich, daß Ultraschallenergie von außerhalb des Körpers zugeführt wird. Verglichen mit Lichtenergie kann Ultraschall weiter und tiefer lokalisierte Läsionen von der Oberfläche des Körpers aus erreichen, da es einen geringeren Energieabfall während der Durchdringung des Gewebes gibt, was es möglich macht, lichtempfindliche Medikamente an der Läsion zu aktivieren.In addition, it is possible that ultrasound energy from outside of the body supplied becomes. Compared to light energy, ultrasound can go further and deeper localized lesions from the surface of the body achieve as there is less energy drop during the Penetration of the tissue gives what makes it photosensitive Medications on the lesion to activate.
KURZE BESCHREIBUNG DER FIGURENBRIEF DESCRIPTION OF THE CHARACTERS
Die
DETAILLIERTE BESCHREIBUNG DER BEVORZUGTEN AUSFÜHRUNGSFORMDETAILED DESCRIPTION THE PREFERRED EMBODIMENT
Verwendungsbeispiel: Das Folgende ist eine spezielle und detaillierte Beschreibung mit Diagrammen eines Beispiels der Verwendung der Erfindung.Usage example: The following is a special and detailed description with diagrams of a Example of the use of the invention.
Elektrische Signale bei Ultraschallfrequenzen
werden zwischen den Elektroden
Experimentelles Beispiel:Experimental example:
Das Folgende ist ein Experiment, das beweist, daß es blockierende Effekte auf die neointimale Hyperplasie unter Verwendung dieser Ultraschall erzeugenden Vorrichtung, die oben beschrieben wurde, gab (Experiment A).The following is an experiment that proves that there were blocking effects on neointimal hyperplasia using this ultrasound generating device described above (Ex periment A).
Die intimale Schicht
Vier Wochen später wurde der Ultraschall ausgesetzte Abschnitt B und der nicht dem Ultraschall ausgesetzte Abschnitt B und C eingeschnitten, getrennt und mit EVG-Färbmittel eingefärbt. Der Hyperplasie-Bereich wurde für die graphische Analyse von einem Computer (Macintosh Quadra 800) gemessen. Das Verhältnis des intimalen Bereichs und des Mediabereichs wurde gemessen.The ultrasound was suspended four weeks later Section B and the section not exposed to ultrasound B and C cut, separated and colored with ECG colorant. The Hyperplasia area was for graphical analysis from a computer (Macintosh Quadra 800) measured. The relationship the intimal area and the media area were measured.
Ein Vergleich wurde durchgeführt mit dem Student's t-Test (gepaart, 0 < 0,05) zwischen den mit Ultraschall belichteten Proben und den nicht mit Ultraschall belichteten Proben. ANOVA wurde für andere Vergleiche verwendet.A comparison was made with the student's t test (paired, 0 <0.05) between the samples exposed to ultrasound and those not Ultrasound exposed samples. ANOVA was used for other comparisons.
Der neointimale Bereich wurde als der Querschnittsbereich der Oberfläche der intimalen Schicht und des medialen Bereichs zwischen der intimalen und der äußeren Schicht festgelegt.The neointimal area was called the cross-sectional area of the surface of the intimal layer and the medial area between the intimal and the outer layer established.
Die Ergebnisse sind unten gezeigt:The results are shown below:
Die Ergebnisse von den Experimenten A und B zeigen, daß Photofrin II allein oder Ultraschall allein keinen unterdrückenden Effekt der Hyperplasie hatte. Die Ultraschallbelichtung und die Zugabe von Photofrin II führte jedoch zu signifikanten therapeutischen Effekten.The results from the experiments A and B show that Photofrin II alone or ultrasound alone has no suppressive effect of hyperplasia would have. Ultrasonic exposure and the addition of Photofrin II led however, to significant therapeutic effects.
In dem obigen Fall wurde das Blutgefäß von außerhalb des Körpers mit Ultraschall belichtet, wobei jedoch, wie im Detail im US-Patent 5,158,071 beschrieben ist, Ultraschall auf einen bestimmten Ort innerhalb des Körpers durch extrakorporale Ultraschallenergiebestrahlung auf lichtempfindliche Medikamente fokussiert werden kann.In the above case, the blood vessel was from outside of the body exposed to ultrasound, however, as detailed in US patent 5,158,071 is described, ultrasound on a specific location inside the body through extracorporeal ultrasonic energy radiation to light-sensitive Medication can be focused.
Wirkungen der ErfindungEffects of the invention
Wie oben beschrieben wurde, wird, da lichtempfindliche Medikamente ebenso gegenüber Ultraschall empfindlich sind, Ultraschall unter Verwendung des Werkzeugs der Erfindung anstelle von Licht angelegt. Krankhafte Läsionen weit von der Oberfläche des Körpers beabstandet können lokal behandelt werden mit dem Effekt von Arzneimitteln, die für die Behandlung effektiv sind.As described above, since photosensitive drugs are also sensitive to ultrasound are ultrasound using the tool of the invention instead created by light. Pathological lesions far from the surface of the body can be spaced are treated locally with the effect of medicines for treatment are effective.
Die vorhergehende Beschreibung einer bevorzugten Ausführungsform der Erfindung wurde aus Zwecken der Illustration und Beschreibung dargestellt. Es ist nicht beabsichtigt, vollständig zu sein oder die Erfindung auf die präzise beschriebenen Formen zu begrenzen. Offensichtlich ergeben sich dem Fachmann viele Modifikationen und Variationen. Der Schutzbereich der Erfindung wird durch die folgenden Ansprüche bestimmt.The previous description of a preferred embodiment the invention has been presented for purposes of illustration and description shown. It is not intended to be exhaustive or the invention to the precise limit the forms described. Obviously this results Specialist many modifications and variations. The protection area the invention is determined by the following claims.
Claims (19)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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JP7048710A JPH08245420A (en) | 1995-03-08 | 1995-03-08 | Treating tool using ultrasonic wave |
JP4871095 | 1995-03-08 | ||
US61110596A | 1996-03-05 | 1996-03-05 | |
US611105 | 1996-03-05 | ||
PCT/US1996/003010 WO1996027341A1 (en) | 1995-03-08 | 1996-03-06 | Ultrasound therapy device |
Publications (2)
Publication Number | Publication Date |
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DE69630285D1 DE69630285D1 (en) | 2003-11-13 |
DE69630285T2 true DE69630285T2 (en) | 2004-07-15 |
Family
ID=26389013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69630285T Expired - Lifetime DE69630285T2 (en) | 1995-03-08 | 1996-03-06 | ULTRASOUND THERAPY DEVICE |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0814719B1 (en) |
JP (1) | JP3955897B2 (en) |
AU (1) | AU5183096A (en) |
DE (1) | DE69630285T2 (en) |
WO (1) | WO1996027341A1 (en) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6210356B1 (en) | 1998-08-05 | 2001-04-03 | Ekos Corporation | Ultrasound assembly for use with a catheter |
US6176842B1 (en) | 1995-03-08 | 2001-01-23 | Ekos Corporation | Ultrasound assembly for use with light activated drugs |
WO1999013943A1 (en) * | 1996-03-05 | 1999-03-25 | Ekos Corporation | Ultrasound assembly for use with light activated drugs |
US6582392B1 (en) | 1998-05-01 | 2003-06-24 | Ekos Corporation | Ultrasound assembly for use with a catheter |
US6575956B1 (en) | 1997-12-31 | 2003-06-10 | Pharmasonics, Inc. | Methods and apparatus for uniform transcutaneous therapeutic ultrasound |
DE19807583C1 (en) | 1998-02-23 | 1999-09-23 | Storz Karl Gmbh & Co | Device for the treatment of body tissue, in particular soft tissue, by means of a reaction which is light-induced by a photosensitizer contained in the body tissue |
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- 1996-03-06 JP JP52701496A patent/JP3955897B2/en not_active Expired - Lifetime
- 1996-03-06 AU AU51830/96A patent/AU5183096A/en not_active Abandoned
- 1996-03-06 WO PCT/US1996/003010 patent/WO1996027341A1/en active IP Right Grant
- 1996-03-06 DE DE69630285T patent/DE69630285T2/en not_active Expired - Lifetime
- 1996-03-06 EP EP96908664A patent/EP0814719B1/en not_active Expired - Lifetime
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DE69630285D1 (en) | 2003-11-13 |
EP0814719A1 (en) | 1998-01-07 |
JPH11504534A (en) | 1999-04-27 |
WO1996027341A1 (en) | 1996-09-12 |
EP0814719B1 (en) | 2003-10-08 |
JP3955897B2 (en) | 2007-08-08 |
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